Spdk/lib/accel/accel_engine_rpc.c
paul luse 44cbea402e lib/accel: Add new RPC to get valid engine info.
The RPC provides a list of initialized engine names along with
that engine's supported operations.

Signed-off-by: paul luse <paul.e.luse@intel.com>
Change-Id: I59f9e5cb7aa51a6193f0bd2ec31e543a56c12f17
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/13745
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Reviewed-by: Aleksey Marchuk <alexeymar@nvidia.com>
2022-08-03 07:53:21 +00:00

125 lines
3.0 KiB
C

/* SPDX-License-Identifier: BSD-3-Clause
* Copyright (c) Intel Corporation.
* All rights reserved.
*/
#include "spdk_internal/accel_engine.h"
#include "spdk/rpc.h"
#include "spdk/util.h"
#include "spdk/event.h"
#include "spdk/stdinc.h"
#include "spdk/env.h"
const char *g_opcode_strings[ACCEL_OPC_LAST] = {
"copy", "fill", "dualcast", "compare", "crc32c", "copy_crc32c",
"compress", "decompress"
};
static int
_get_opc_name(enum accel_opcode opcode, const char **opcode_name)
{
int rc = 0;
if (opcode < ACCEL_OPC_LAST) {
*opcode_name = g_opcode_strings[opcode];
} else {
/* invalid opcode */
rc = -EINVAL;
}
return rc;
}
static void
rpc_accel_get_opc_assignments(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct spdk_json_write_ctx *w;
enum accel_opcode opcode;
const char *name, *engine_name;
int rc;
if (params != NULL) {
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"accel_get_opc_assignments requires no parameters");
return;
}
w = spdk_jsonrpc_begin_result(request);
spdk_json_write_object_begin(w);
for (opcode = 0; opcode < ACCEL_OPC_LAST; opcode++) {
rc = _get_opc_name(opcode, &name);
if (rc == 0) {
rc = spdk_accel_get_opc_engine_name(opcode, &engine_name);
if (rc != 0) {
/* This isn't fatal but throw an informational message if we
* cant get an engine name right now */
SPDK_NOTICELOG("FYI error (%d) getting engine name.\n", rc);
}
spdk_json_write_named_string(w, name, engine_name);
} else {
/* this should never happen */
SPDK_ERRLOG("Invalid opcode (%d)).\n", opcode);
assert(0);
}
}
spdk_json_write_object_end(w);
spdk_jsonrpc_end_result(request, w);
}
SPDK_RPC_REGISTER("accel_get_opc_assignments", rpc_accel_get_opc_assignments,
SPDK_RPC_STARTUP | SPDK_RPC_RUNTIME)
static void
rpc_dump_engine_info(struct engine_info *info)
{
struct spdk_json_write_ctx *w = info->w;
const char *name;
uint32_t i;
int rc;
spdk_json_write_object_begin(w);
spdk_json_write_named_string(w, "engine", info->name);
spdk_json_write_named_array_begin(w, "suppoerted ops");
for (i = 0; i < info->num_ops; i++) {
rc = _get_opc_name(i, &name);
if (rc == 0) {
spdk_json_write_string(w, name);
} else {
/* this should never happen */
SPDK_ERRLOG("Invalid opcode (%d)).\n", i);
assert(0);
}
}
spdk_json_write_array_end(w);
spdk_json_write_object_end(w);
}
static void
rpc_accel_get_engine_info(struct spdk_jsonrpc_request *request,
const struct spdk_json_val *params)
{
struct engine_info info;
if (params != NULL) {
spdk_jsonrpc_send_error_response(request, SPDK_JSONRPC_ERROR_INVALID_PARAMS,
"accel_get_engine_info requires no parameters");
return;
}
info.w = spdk_jsonrpc_begin_result(request);
spdk_json_write_array_begin(info.w);
_accel_for_each_engine(&info, rpc_dump_engine_info);
spdk_json_write_array_end(info.w);
spdk_jsonrpc_end_result(request, info.w);
}
SPDK_RPC_REGISTER("accel_get_engine_info", rpc_accel_get_engine_info,
SPDK_RPC_RUNTIME)